Heater



Oct. 4, 1938; A HATVELT 2,132,294

HEATER Filed July 26, 1937 2 Sheets-Sheet 1 INVENTOR ATTOR N EYS Oct. 4,

A. HATVELT HEATER Filed July 26, 1937 2 Sheets-Sheet 2 ATTORNEYS Patented Oct. 4, 1938 UNITED STATESYPATENT OFFICE 4 Alfred Hatvelt, Missoula, Mont. Application July 26, 1937, Serial No. 155,791

i Claims.

Another object of the invention is the provision ofa heater of this character, wherein the largestpossible heat units may be given ofl without stack or chimney loss thereof and thus assuring, econ- 15 omy in fuel consumption for air heating, the air heated being subjected to a force draft under the action of a motor driven fan.

A further object of the invention is the provision of a heater of this character, wherein the 20 products of combustion flow in a zigzag course through a series of horizontally disposed spaced tube-like ra'diator' units or sections, these being arranged vertically stacked within a casing and deliver the spent products of combustion to a flue 25 or stack while the air which is circulated about and between the said units or sections will be subjected to a maximum radiating surface created by the said units or sections for the heatin of the air when forced into an enclosure or room 30 for the heating of the same.

- A still further object of the invention is the provision of a heater of this character, which is simple in its construction, thoroughly reliable and e flcient in operation, possessed of maximum 85 heating qualities, economical in fuel consumption, neat in appearance and inexpensive to manufacture.

'With these and other objects in view,-the invention' consists in the features of construction, 40 combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, which disclose the preferred embodiment of the invention, and pointed out in the claims hereunto appended.

In the accompanying drawings: Figure 1 is an elevation partly in vertical section of a heater constructed in accordance with the invention.

with the casing removed.

Figure 3 is a side elevation of the heater unit w th the casing shown in section.

Figure 4 is a fragmentary enlarged vertical 5 transverse sectional view through the heater.

'- is regulated.

Figure 2 is a top plan view of the heater unit Figure 5 is a sectional view on the line 5- 5 of Figure 4 looking in the direction of the arrows.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, A designates generally a heater constructed in accordance with-the invention and embodies a burner stand In which also constitutes. the base section for a casing or housing ll of substantially oval l0 formation in cross section having a flared open bottom l2 and a grated top outlet opening 13, respectively, the grate ll thereof being the hot air outlet while this casing or housing II at its front is formed with a relatively large air outlet window or opening IS, the gear being formed with a louvered opening 15'.

The stand I0 is provided with legs [6 and supports a bottom plate I1 to a products-of-combustion header I 8 forming a combustion chamber I9 therein. This bottom plate I! centrally thereof is formed with an opening 20 through which is carried the upper portion of an oil burner 2|, oil feed thereto, being had bya conduit 22 leading from an oil trap 23. This oil trap 23- by a pipe connection 24 has communication with an oil reservoir or tank 25 bracketed at 26 to the stand Ill. The trap is fitted with a cut-off valve (not shown) and controlled by a turning stem or operating rod 21 vertically disposed and suitably supported, the stem or rod 21 at its upper end being fitted with a hand grip 28 readily accessible for the turning on or turning off of the valve hereinbefore mentioned and in this manner the oil supply from the reservoir or tank 25 to the burner 2| The reservoir or tan 25 at its top is fitted with a filling cap 29 removable therefrom.

Within the casing or housing II above the header I8 is a series of vertically spaced liorizontally arranged tubular radiator units or sections 30, these being vertically separated from each other by interposed spacer blocks 3| and are com-- municative with each other through the medium of alternately arranged coupling nipples 32, the lowermost section or unit of the series being in. communication with the chamber l9 through dual couplings 33 while the uppermost section or unit of the series has an outlet coupling 34 with ,a stack or chimney pipe 35 suitably joined with the casing or housing I l The sections or units 30 are provided with substantially rectangular shaped open centers 36 registering with each other vertically through the series of said sections or units and together a of the series of units or sections between the same and the said casing, this air circulation being also had between the sections or units in their vertically spaced relation to each other.

\ Suitably flxed at the top of the reservoir or tank 2! is an electric motor 31, its power shaft 38 rotating a bladed fan wheel 38 arranged within the center openings 36 with respect to certain of the units or sections 30 in the series thereof. The motor 31 when operated drives the bladed fan wheel 39 causing a suction of air into the casing or housing H and thence forcingit about the sections or units 30 and finally driving the heated air from within the said casing or housing ll out through the outlets I4 and ii for distribution exteriorly of said casing or housing. This air circulated by the fan wheel 39 is heated, being subjected to a maximum radiating surface created by the stacked series of sections or units 30 to be quickly heated thereby in the working of the oil burner 2|. the front of the casing or housing I I by a transparent paneled door 40 hinged at 4| to the said housing or casing for closing a doorway leading directly into the said chamber.

Surrounding the oil heater 2| is an air conducting annulus or circular shell 42 for the admission of air to the burner for the proper operation thereof. Maximum heating of air will be had by the heater with a minimum consumption of fuel. A

En aged with the stand will and also accommodated in laterally extending ears 43 formed with the units or sections 30 are anchoring rods 44, these being held in place by nuts 45 threaded thereon at their upper ends and in this manner the units or sections 30 are secured assembled with the header l8 and also the latter with the stand ll.

What is claimed is: p

1. A heater of the character described comprising a stand, a header supported on the stand and forming a combustion chamber, a plurality of endless tubular radiator sections vertically spaced from each other and above the header and having communication with each'other for effecting a zigzag heat circulating course therethrough and from the header, an oil burner associated with said header, a casing surrounding the tubular sections to provide air passages. adjacent thereto, adischarge flue passing through said casing and communicating with the uppermost.v of said sections, and a motor driven fan operating centrally within said sections.

The chamber I9 is accessible from '2. A heater of the character described com- ,prising a-stand, a header supported on the stand and forming a combustion chamber, a plurality of endless tubular radiator sections vertically spaced from each other and above the header and having communication with each other for eifecting a zigzag heat circulating course therethrough and from the header, an oil burner associated with said header, a casing surrounding the tubular sections to provide air passages adjacent thereto, a discharge flue passing through said casing and communicating with the uppermost of said sections, a motor driven fan operating centrally within said sections, and a fuel supply tank supported by said stand exteriorly of the casing and having communication with-the burner.

3. A heater of the character described comprising a stand, a header supported on the stand and forming a combustion chamber, a plurality of from each other and above the header and having communication with each otherfor eifecting a zigzag heat circulating course therethrough and from the header, an oil burner associated with said header, a casing surrounding the tubular sections to provide air passages adjacent thereto,

a discharge flue passing through said casing and ing a stand, a header supported on the stand' and forming a combustion chamber, a plurality of endless tubular radiator sections vertically spaced from each other and above the header and having communication with each other for endless tubular radiator sections vertically spaced eflfecting a zigzag heat circulating course therethrough and from the header, an oil burner associated with saidvheader, a casing surrounding the tubular. sections to provide air passages adjacent thereto, a discharge flue passing through said casing and communicating with the uppermost of said sections, a motor driven-fan operating centrally within said sections, a fuel supply tank supported by said stand exteriorly of the casing and having communication with the burner, and means for-controlling the fuel supply tothe said burner and accessible outside of the casing, the said casing having an outlet grating at its top and a relatively large open front.

' Armin HA'I'VELT. 

